Serial to PS/2 adapter

I have an old 486 that I just took out of storage, and I found that the old serial keyboard that went with it is gone. All I have are PS/2 keyboards(and I can't find any serial ones anywhere), so is there any kind of serial-to-ps2 adapter for keyboards?

 

Belkin among others make a serial to PS2 adaptor, however, most 486's I have seen have a DIN keyboard connector and not serial.

Regardless of which one it is, adaptors are freely available from most outlets.